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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef _BC_QRDETECTOR_H_
#define _BC_QRDETECTOR_H_
class CBC_ResultPoint;
class CBC_CommonBitMatrix;
class CBC_QRDetectorResult;
class CBC_QRFinderPatternInfo;
class CBC_QRAlignmentPattern;
class CBC_QRFinderPatternFinder;
class CBC_QRCoderVersion;
class CBC_QRGridSampler;
class CBC_QRAlignmentPatternFinder;
class CBC_QRAlignmentPattern;
class CBC_QRDetector;
class CBC_QRDetector
{
private:
CBC_CommonBitMatrix *m_image;
public:
CBC_QRDetector(CBC_CommonBitMatrix *image);
virtual ~CBC_QRDetector();
CBC_CommonBitMatrix* GetImage();
CBC_QRDetectorResult* Detect(FX_INT32 hints, FX_INT32 &e);
CBC_QRDetectorResult* ProcessFinderPatternInfo(CBC_QRFinderPatternInfo *info, FX_INT32 &e);
FX_FLOAT CalculateModuleSize(CBC_ResultPoint *topLeft, CBC_ResultPoint *topRight, CBC_ResultPoint *bottomLeft);
FX_FLOAT CalculateModuleSizeOneWay(CBC_ResultPoint *pattern, CBC_ResultPoint *otherPattern);
FX_FLOAT SizeOfBlackWhiteBlackRunBothWays(FX_INT32 fromX, FX_INT32 fromY, FX_INT32 toX, FX_INT32 toY);
FX_FLOAT SizeOfBlackWhiteBlackRun(FX_INT32 fromX, FX_INT32 fromY, FX_INT32 toX, FX_INT32 toY);
CBC_QRAlignmentPattern* FindAlignmentInRegion(FX_FLOAT overallEstModuleSize, FX_INT32 estAlignmentX, FX_INT32 estAlignmentY, FX_FLOAT allowanceFactor, FX_INT32 &e);
static FX_INT32 Round(FX_FLOAT d);
static FX_INT32 ComputeDimension(CBC_ResultPoint *topLeft, CBC_ResultPoint *topRight, CBC_ResultPoint *bottomLeft, FX_FLOAT moduleSize, FX_INT32 &e);
static CBC_CommonBitMatrix* SampleGrid(CBC_CommonBitMatrix *image, CBC_ResultPoint *topLeft, CBC_ResultPoint *topRight,
CBC_ResultPoint *bottomLeft, CBC_ResultPoint* alignmentPattern, FX_INT32 dimension, FX_INT32 &e);
};
#endif
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